Might be - also, in the UK at least where most houses are on a TN-C-S electric supply (earth and neutral are the same conductor) if there's a break on the neutral and you don't have an earthing rod (PEN fault) the car can be at high voltage compared to true earth, and you can get a lethal shock if you touch it. There are roughly 500 of these faults a year across the UK.

Level 2 chargers here either need PEN fault protection built in, or you need a correctly sized earthing rod installed.